public void ShallowCloneOfVirtualItemGroup()
        {
            BuildItemGroup group = new BuildItemGroup();
            group.AddNewItem("i", "i1");
            BuildItem i2 = new BuildItem("i", "i2");
            group.AddItem(i2);

            BuildItemGroup group2 = group.Clone(false /*shallow*/);

            Assertion.AssertEquals(2, group2.Count);
            Assertion.AssertEquals("i1", group2[0].FinalItemSpec);
            Assertion.Assert(i2.Equals(group2[1]));
        }